* Click on the following link for <big>'''[[Sample Spectra of Spectrophotometric Standard Stars]]'''</big> observed with G4, G5, G6 and G7.
* Click on the following link links for arc maps for <big>'''[[Arc MapsG4]]'''</big> for G4, <big>'''[[G5 ]]'''</big> and <big>'''[[G7]]'''</big>.
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